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Research on the Cognitive Reliability Model of DCS+SOP in the Ling’ao Phase II Nuclear Power Plant’s Main Control Room
Nuclear Technology ( IF 1.5 ) Pub Date : 2020-04-14 , DOI: 10.1080/00295450.2020.1733376
Yanzi Liu 1 , Xuegang Zhang 1 , Gang Zhang 1 , Jianjun Jiang 2 , Li Zhang 2 , Hong Hu 2 , Tao Qing 2 , Yanhua Zou 2 , Dan Yang 2 , Liaozi Xi 2 , Fan Tang 2 , Ming Jia 1 , Yiqian Wu 1 , Zhiyao Liu 1
Affiliation  

Abstract The digital control system (DCS)+state-oriented procedure (SOP) system adopted by China’s Ling’ao Phase II nuclear power plant’s main control room requires changes to the cognitive process, behavior mode, and error mode while triggering new human factors. Therefore, in this paper we present a cognitive reliability model for the DCS+SOP system in the Ling’ao Phase II Nuclear Power Plant’s main control room and conduct a human reliability analysis. The model is based on the cognitive process with respect to considering the coordinator’s accident recovery effect and obtaining the method of calculating cognitive reliability. We determine impact factors for the three cognitive stages of the operator’s and the coordinator’s diagnosis, decision making, and operation. We obtain the operator’s and the coordinator’s weights for each process through an analytic hierarchy process. Using methods of simulation and analyzing the experiment data, we obtain revised coefficients for the cognitive reliability model. Additionally, the trend of the simulation curve indicates the rationality of the model. Finally, we provide an example based on the proposed cognitive reliability model. The process of analyzing the example demonstrates that this method provides a feasible analysis method for the cognitive reliability of the DCS+SOP system in the main control room.

中文翻译:

岭澳二期核电站主控室DCS+SOP认知可靠性模型研究

摘要 我国岭澳二期核电站主控室采用的数字控制系统(DCS)+状态导向程序(SOP)系统,在触发新的人为因素的同时,需要改变认知过程、行为模式和错误模式。为此,本文提出了岭澳二期核电站主控室DCS+SOP系统的认知可靠性模型,并进行了人员可靠性分析。该模型基于认知过程,考虑协调者的事故恢复效果,得到计算认知可靠性的方法。我们确定操作员和协调员的诊断、决策和操作三个认知阶段的影响因子。我们通过层次分析过程获得每个过程的操作员和协调员的权重。通过仿真和分析实验数据的方法,我们得到了认知可靠性模型的修正系数。此外,仿真曲线的趋势表明了模型的合理性。最后,我们提供了一个基于所提出的认知可靠性模型的例子。实例分析过程表明,该方法为主控室DCS+SOP系统的认知可靠性提供了一种可行的分析方法。我们提供了一个基于提出的认知可靠性模型的例子。实例分析过程表明,该方法为主控室DCS+SOP系统的认知可靠性提供了一种可行的分析方法。我们提供了一个基于提出的认知可靠性模型的例子。实例分析过程表明,该方法为主控室DCS+SOP系统的认知可靠性提供了一种可行的分析方法。
更新日期:2020-04-14
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